DE602005009531D1 - Magnetic sensor system for measuring a rotation angle and method for iteratively aligning the magnet relative to the magnetic sensors of the system - Google Patents

Magnetic sensor system for measuring a rotation angle and method for iteratively aligning the magnet relative to the magnetic sensors of the system

Info

Publication number
DE602005009531D1
DE602005009531D1 DE602005009531T DE602005009531T DE602005009531D1 DE 602005009531 D1 DE602005009531 D1 DE 602005009531D1 DE 602005009531 T DE602005009531 T DE 602005009531T DE 602005009531 T DE602005009531 T DE 602005009531T DE 602005009531 D1 DE602005009531 D1 DE 602005009531D1
Authority
DE
Germany
Prior art keywords
output
sensor system
signal
measuring
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602005009531T
Other languages
German (de)
Inventor
Frank Perske
Colin Steele
Marcel Urban
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ams AG
Original Assignee
Austriamicrosystems AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Austriamicrosystems AG filed Critical Austriamicrosystems AG
Publication of DE602005009531D1 publication Critical patent/DE602005009531D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/02—Measuring arrangements giving results other than momentary value of variable, of general application giving mean values, e.g. root means square values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention relates to a sensor system and method of operating such a sensor system for measuring an angle of rotation with an arrangement of at least four magnetic sensors (10, 11, 12, 13), at least four signal modulators (30, 31, 32, 33), each one connected to one of the magnetic sensors (10, 11, 12, 13) and having at least two control states, whereby, in a first state (+), a signal received from a sensor (10, 11, 12, 13) is output by the signal modulators (30, 31, 32, 33) and, in a second state (-), the inverse of the signal received from the sensor (10, 11, 12, 13) is output by the signal modulators (30, 31, 32, 33), a means (90) for adding the signals output by the signal modulators (30, 31, 32, 33) and a diametrically magnetized magnetic source (9). The sensor system is characterized in that the sensor system further comprises a data output (82) and a control circuit (80) with at least one control input (81), allowing to switch the control circuit (80) into at least two different modes, whereby in a normal mode of operation, the signal modulators (30, 31, 32, 33) are configured in such a way that a signal corresponding to the angular position of the diametrically magnetized magnetic source (9) is output to the data output (82), and in an alignment mode of operation, the signal modulators (30, 31, 32, 33) are configured in such a way that a signal corresponding to the average magnetic field strength detected by the sensors (10, 11, 12, 13) is output to the data output (82).
DE602005009531T 2005-09-12 2005-09-12 Magnetic sensor system for measuring a rotation angle and method for iteratively aligning the magnet relative to the magnetic sensors of the system Active DE602005009531D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05019803A EP1762826B1 (en) 2005-09-12 2005-09-12 Magnetic sensor system for measuring an angle of rotation and method for iteratively aligning the magnet relative to the magnetic sensors of the system

Publications (1)

Publication Number Publication Date
DE602005009531D1 true DE602005009531D1 (en) 2008-10-16

Family

ID=35616894

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005009531T Active DE602005009531D1 (en) 2005-09-12 2005-09-12 Magnetic sensor system for measuring a rotation angle and method for iteratively aligning the magnet relative to the magnetic sensors of the system

Country Status (7)

Country Link
US (1) US8030916B2 (en)
EP (1) EP1762826B1 (en)
JP (1) JP4698736B2 (en)
KR (1) KR100978707B1 (en)
AT (1) ATE407346T1 (en)
DE (1) DE602005009531D1 (en)
WO (1) WO2007031167A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026220B4 (en) * 2007-06-05 2020-12-10 Austriamicrosystems Ag Sensor arrangement, measuring system and measuring method
DE102007054801B4 (en) 2007-11-16 2015-12-03 Austriamicrosystems Ag Measuring method, sensor arrangement and method for constructing a measuring system
FR2923903B1 (en) 2007-11-20 2010-01-08 Moving Magnet Tech ANGULAR OR LINEAR MAGNETIC POSITION SENSOR HAVING EXTERNAL FIELD INSENSITIVITY
JP2011033601A (en) * 2009-08-06 2011-02-17 Koyo Electronics Ind Co Ltd Method for fixing magnet in magnetic encoder and magnetic encoder using the same
CN101982165B (en) * 2010-10-26 2012-10-10 浙江长生鸟珍珠生物科技有限公司 Modified pearl moisturizer
JP5679136B2 (en) * 2011-11-24 2015-03-04 トヨタ自動車株式会社 Rotation angle detection device and electric power steering device provided with rotation angle detection device
JP6897638B2 (en) * 2018-07-02 2021-07-07 Tdk株式会社 Magnet evaluation method and evaluation device
US10996085B2 (en) 2019-01-09 2021-05-04 Infineon Technologies Ag Sensor alignment using homogeneous test mode
JPWO2022004092A1 (en) * 2020-07-03 2022-01-06

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597213A (en) * 1982-07-05 1984-01-14 Inoue Japax Res Inc Encoder
US5491632A (en) * 1994-05-26 1996-02-13 General Motors Corporation Rotary encoder with neutral position
US5500589A (en) * 1995-01-18 1996-03-19 Honeywell Inc. Method for calibrating a sensor by moving a magnet while monitoring an output signal from a magnetically sensitive component
US6433536B1 (en) * 1998-12-31 2002-08-13 Pacsci Motion Control, Inc. Apparatus for measuring the position of a movable member
US6580269B2 (en) * 2000-04-14 2003-06-17 Melexis Uk Ltd. Magnetic sensing devices and systems
DE10201875C1 (en) 2002-01-18 2003-05-22 Austriamicrosystems Ag Magnetic or electrical field sensor system has modulators with non-inverting and inverting conditions providing for different sensor configurations

Also Published As

Publication number Publication date
JP4698736B2 (en) 2011-06-08
KR100978707B1 (en) 2010-08-30
EP1762826A1 (en) 2007-03-14
US8030916B2 (en) 2011-10-04
ATE407346T1 (en) 2008-09-15
EP1762826B1 (en) 2008-09-03
US20100219815A1 (en) 2010-09-02
JP2009508119A (en) 2009-02-26
KR20080045280A (en) 2008-05-22
WO2007031167A1 (en) 2007-03-22

Similar Documents

Publication Publication Date Title
DE602005009531D1 (en) Magnetic sensor system for measuring a rotation angle and method for iteratively aligning the magnet relative to the magnetic sensors of the system
JP4410566B2 (en) Method and apparatus for detecting moving and rotating motion
CN108303562B (en) Demagnetization field robust torsion sensitive magnetic speed sensor
US7830278B2 (en) Sensor arrangement for the precise detection of relative movements between an encoder and a sensor
CN105222812B (en) There are three the sensing systems of half-bridge structure for tool
CN107850618B (en) Method and device for operating a rotational speed sensor, rotational speed sensor arrangement
US7548060B2 (en) Magnetic sensor system
US20120249133A1 (en) Differential magnetic field sensor structure for orientation independent measurement
EP1183498B1 (en) Position encoder utilizing fluxgate sensors
WO2011004120A3 (en) Multi-periodic absolute position sensor
US20130015845A1 (en) Absolute angular position sensor using two magnetoresistive sensors
CN100451555C (en) Method for the transmission of angle information and apparatus implementing the method
WO2009024119A3 (en) Linear segment or revolution counter with a ferromagnetic element
ATE519096T1 (en) MAGNETORESISTIC SENSOR WITH TEST MODE ACTIVATION
SE0500807L (en) Vehicle control system
US8863592B2 (en) Sensor system for combined speed-torque detection
CN105301277B (en) Wheel speed sensor capable of static test
WO2007111978A3 (en) Inertial measurement system and method with bias cancellation
US20110089930A1 (en) Method for determining at least one first internal parameter of a sensor
US11555688B2 (en) Device having two mutually spaced sensor loops for determining the angle of a rotating component
DE502004006386D1 (en) Method and angle encoder for measuring the absolute angular position
JP3855801B2 (en) Rotation detector
CN110927399A (en) High resolution module for magnetic field sensor
US7013233B2 (en) Method and device for the detection of the movement of an element
JP2010120394A (en) Shift position detection device

Legal Events

Date Code Title Description
8364 No opposition during term of opposition